3969213 has 8 divisors (see below), whose sum is σ = 5325408. Its totient is φ = 2629584.

The previous prime is 3969193. The next prime is 3969221. The reversal of 3969213 is 3129693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3969213 - 2⁵ = 3969181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3570 + ... + 4547.

It is an arithmetic number, because the mean of its divisors is an integer number (665676).

Almost surely, 2^3969213 is an apocalyptic number.

It is an amenable number.

3969213 is a deficient number, since it is larger than the sum of its proper divisors (1356195).

3969213 is a wasteful number, since it uses less digits than its factorization.

3969213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8283.

The product of its digits is 8748, while the sum is 33.

The square root of 3969213 is about 1992.2883827398. The cubic root of 3969213 is about 158.3317948758.

The spelling of 3969213 in words is "three million, nine hundred sixty-nine thousand, two hundred thirteen".